/* Custom CSS using BEM Methodology */
:root {
  --color-primary: #0a2540;
  --color-primary-hover: #16385d;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fa;
  --color-text-main: #333333;
  --color-text-muted: #666666;
  --color-white: #ffffff;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  --font-main: 'Roboto', sans-serif;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.12);
  
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3 {
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-main);
  font-weight: 700;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-muted);
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.section {
  padding: var(--spacing-xl) var(--spacing-sm);
}

.section__container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.section__title {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  font-weight: 300;
  position: relative;
}

.section__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--color-primary);
  margin: var(--spacing-sm) auto 0;
  border-radius: var(--border-radius-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--border-radius-full);
  font-weight: 500;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-normal);
  font-family: var(--font-main);
  font-size: 1rem;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-white);
}

.btn--full {
  width: 100%;
}

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid rgba(0,0,0,0.03);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.hero {
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  padding: var(--spacing-xl) var(--spacing-sm);
  max-width: 1200px;
  margin: 0 auto;
  gap: var(--spacing-lg);
}

.hero__content {
  flex: 1;
  text-align: center;
  animation: fadeInDown 0.8s ease backwards;
}

.hero__title {
  font-size: 2.5rem;
  font-weight: 300;
}

.hero__highlight {
  font-weight: 700;
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.hero__actions {
  margin-bottom: var(--spacing-md);
}

.hero__visual {
  flex: 1;
  width: 100%;
  max-width: 400px;
  position: relative;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero__image {
  border-radius: var(--border-radius-md);
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-lg);
}

.hero__shape-bg {
  position: absolute;
  top: 10%;
  left: -5%;
  width: 110%;
  height: 90%;
  background-color: var(--color-bg-alt);
  border-radius: var(--border-radius-md);
  z-index: 1;
  transform: rotate(-3deg);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
}

.social-links__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-bg-alt);
  color: var(--color-text-main);
  font-size: 1.25rem;
  transition: all var(--transition-normal);
}

.social-links__item:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
}

.projects {
  background-color: var(--color-bg);
}

.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.project-card {
  display: flex;
  flex-direction: column;
}

.project-card__title {
  font-size: 1.25rem;
}

.project-card__text {
  flex-grow: 1;
  margin-bottom: var(--spacing-md);
}

.project-card__link {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.project-card__link i {
  transition: transform var(--transition-fast);
}

.project-card__link:hover i {
  transform: translateX(4px);
}

.tech-stack {
  background-color: var(--color-bg-alt);
}

.tech-stack__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.tech-group__icon {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.tech-group__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.tech-group__list {
  list-style: none;
}

.tech-group__item {
  color: var(--color-text-muted);
  padding: 8px 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.tech-group__item:last-child {
  border-bottom: none;
}

.contact {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-sm);
}

.contact__container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.contact__title {
  color: var(--color-white);
  font-size: 2.5rem;
  font-weight: 300;
}

.contact__text {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
}

.contact__form {
  background-color: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  color: var(--color-text-main);
}

.form__group {
  margin-bottom: var(--spacing-sm);
}

.form__label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-text-main);
  font-size: 0.95rem;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-main);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 37, 64, 0.1);
}

.footer {
  background-color: var(--color-bg);
  padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
  margin-top: auto;
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer__heading {
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: var(--spacing-xs);
}

.footer__address {
  font-style: normal;
  color: var(--color-text-muted);
}

.footer__contact-item {
  margin-bottom: 6px;
  color: var(--color-text-muted);
}

.footer__bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(0,0,0,0.05);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 30em) {
  .projects__grid,
  .tech-stack__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 48em) {
  .hero {
    flex-direction: row;
    justify-content: space-between;
    padding: var(--spacing-xl) var(--spacing-sm);
  }
  
  .hero__content {
    text-align: left;
  }
  
  .hero__title {
    font-size: 3.5rem;
  }
  
  .social-links {
    justify-content: flex-start;
  }
  
  .projects__grid,
  .tech-stack__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact__container {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  
  .footer__content {
    grid-template-columns: repeat(2, 1fr);
  }
}